Improved shaking-table



UNITED STATES PATENT OFFICE WILLIAM B. FRUE, OF HOGHTON, MICHIGAN.

IMPROVED SHAKlNG-TABLE.

Specificaton forming part of Letters Patent NO. 58,S06, dated October 16, 1866.

To all 'whom t't may Concern:

Be it known that I, W. B. FRUE, of Houghton, in the County of Houghton and State of Michigan, have invented a new and Improved Shaking-Table; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure l represents a longitudinal Vertical section of this invention. Fig. 2 is asectional plan or top view thereof.

Similar letters of reference indicate like parts.

This invention relates to a shaking-tablc, the top of which is made undulating, or so that it forms a series of concave troughs, in which the ore lodges, and which are provided with projecting points Or teeth, and with disoharge-channels, in such a manner that by the motion imparted to the table and by the action of the projecting teeth the ore is thoroughly agitated, and the heavy parts are made to pass through the diseharge channels, while the waste is thrown Off over the lowest end of each of the eoncave troughs. -The motionim parted to the top of this shaking-table is triplc, and thereby the separation of the ore is materially facilitated.

A represents a frame, made of wood or any other suitable material. This frame forms the bearings for the (lriving-shaft B, on which is Inounted a pullcy, (l, and from this pulley a belt, D, eXtends to a pulley, E, on the shaft F, as clearly shown in the drawings.

G- is the top of my shaking-table, which is suspended by links (b at one end from pivots b, secured in the frame A, and by links c at the other end from two cranks, (l, in the shaft F..

The driving shaft B is also provided with a crank, e, which connects by a pitman, f, with the top G. By these means atriple motion is imparted to the top-viz., a reciprocatingmotion by the erank G in the driving-shaft, a rising-and-falling motion by the links a, and au oscillating motion by the action of the cranks d in the shaft F.

The surface of` the top G is undulating, so that the same 'forms a 'series of concave troughs, g, and said top is hungin an inclined position, somewhat higher at one end .than at the other. Each of the concave troughs is provided with a series of teeth, IL, and with several discharge-openings t'. v

The ore is let on the table at its highest end, and by the motion given to the table the ore is separated according to the specific gravity of the several parts contained therein. The light parts pass off to the next succeeding trough, and the heavy parts discharge through the openings t. The tecth ]L serve to agitate the ore as the same passes over the surt'ace of the table, and thereby the separation is materially facilitated. The waste discharges over the lowest end of the table.

f desired, a second table may be placed underneath the first, so that those particles which diseharge from the first table undergo a second separation, and thereby all the Inetal contained in the ore is saved.

What I claim as new, and desire to secure' ,signed by me this 7th day of August, 1866.

WM. B'. FRUE.

VVitnesses WM. F. MCNAMARA, W. HAUFF. 

